Matching Pairs Vocabulary New FrontiersOnline version Vocabulary related to space exploration by Pablo Navarro 1 Seasonal 2 Geyser 3 To advance 4 Requirement 5 Astronomer 6 Habitable 7 To equip 8 Diameter 9 Hazy To make progress or move forward in the understanding or exploration of space. The distance across a celestial body, such as a planet, moon, or asteroid, at its widest point. Capable of supporting life or having the potential to sustain life. A scientist who studies the universe, including its stars, planets, galaxies, and other phenomena. Occurring or varying according to the seasons, such as seasonal changes in weather or climate on different planets. A vent or opening in the surface of a planet or moon that erupts hot water, steam, or gas into the air. To provide with the necessary tools, instruments, or equipment for space exploration or research. A necessary condition or need for successful space exploration or a specific space mission. Obscured or partially hidden by dust, clouds, or other particles, making it difficult to see clearly.